Search results for: “green hydrogen”
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Bright green hydrogen from biomass gasification?
Woody biomass can be converted into clean hydrogen via gasification. If the resultant CO2 is sequestered, each ton of hydrogen may be associated with -20 tons of CO2 disposal. The economies of hydrogen from biomass gasification require $11/kg-e revenues for a 10% IRR on capex of $3,000/Tpa of biomass, or lower, with CO2 disposal incentives.
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Green hydrogen: the economics?
We have modelled the economics of a green hydrogen project, electrolysing water using renewable energy. An H2 price of $8/kg ($60/mcfe) is required to earn a 10% return. Costs data are captured. The most challenging input variable is not capex cost or efficiency, but utilization rate, if the project is to be truly green.
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NEL: green hydrogen technology review?
NEL is a green hydrogen technology company, headquartered in Oslo, listed on the Oslo Børs since 2014, and employing 575 people. It has manufactured 3,500 electrolyser units, going back to 1927, historically weighted to alkaline electrolysers, and increasingly focused on PEMs and hydrogen fuelling stations. This NEL technology review explores its patents.
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Plug power: green hydrogen breakthroughs?
Our Plug Power technology review is drawn from the company’s recent patent filings, which offer some of the most detailed disclosures we have ever seen into the manufacturing of PEM electrolysers and fuel cells, underlying catalyst materials, membranes and their manufacturing. One patent seems like a breakthrough. Other patents candidly presented challenges.
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Transporting green hydrogen as ammonia or toluene?
Green hydrogen could be converted into ammonia, shipped like LPGs, then cracked back into green hydrogen in a developed world country. The best case costs are around $10/kg, while generating an IRR of 10%, with full, round-trip energy efficiency of c60%.
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Green hydrogen trucks: delivery costs?
We have modelled full-cycle economics of a green hydrogen value chain to decarbonize trucks. In Europe, at $6/gallon diesel, hydrogen trucks will be 30% more expensive in the 2020s. They could be cost-competitive by the 2040s. But the numbers are generous and logistical challenges remain. Niche adoption is more likely than a wholesale shift.
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Green hydrogen: can electrolysers run off renewables?
What degradation rate is expected for a green hydrogen electrolyser, if it is powered by volatile wind and solar inputs? This 15-page note reviews past projects and technical papers. 5-10% pa degradation rates would raise green hydrogen costs by $1/kg. Avoiding degradation justifies higher capex, especially on power-electronics and even batteries?
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Green Hydrogen Economy: Holy Roman Empire?
We model the green hydrogen value chain: harnessing renewable energy, electrolysing water, storing the hydrogen, then generating usable power in a fuel cell. Today’s costs are very high, at 64c/kWh. Even by 2050, our best case scenario is 14c/kWh, which elevates household electricity bills by $440-990/year compared with decarbonizing natural gas.
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Green hydrogen electrolysers in Europe: a database?
This data-file derives conclusions into green hydrogen electrolysers in Europe, based on c240 distinct projects. The market is shifting away from smaller alkaline electrolyers to super-giant PEMs and SOECs. Key controversies are visibly emerging around power sources and hydrogen uses.
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Hydrogen: overview and conclusions?
We think the best opportunities in hydrogen will be to decarbonize gas at source via blue and turquoise hydrogen, displacing ‘black hydrogen’ that currently comes from coal, and to produce small-scale feedstock on site via electrolysis for select industries. Others see green hydrogen as a cornerstone of the future energy system. We think there may…
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